

6-20L Natural Gas Tankless Water Heater with LPG Option
6-12l natural gas tankless water heater supplier is a B2B option for gas water heater installation, OEM/ODM sourcing and export orders. Confirm fuel type, capacity, water pressure, packaging and destination-market requirements before ordering. 6-12L natural gas tankless water heater with LPG configuration options for household and export channels. The range is suited to buyers comparing gas type, flow, compact installation, and OEM packaging before a sample order.
Important: gas nozzle, pressure, connector, exhaust, and local installation requirements must be confirmed for the destination market.
Place of Origin: China
Minimum Order Quantity: 50 pcs
Payment Terms: L/C, T/T, Western Union
Supply Ability: 30000 pcs per month
Port: Zhongshan, Guangzhou, Shenzhen
Delivery time: By T/T, within 30 days after receiving 30% deposit
6-20L Natural-Gas Tankless Series with LPG Configuration Option
This page is for buyers whose primary requirement is a natural-gas tankless range while retaining the option to confirm an LPG configuration for a different market. The published product table lists a 6L-20L flue-exhaust series, 0.02-0.8 MPa water pressure, copper heat exchanger, automatic ignition and battery power.
Gas-configuration checklist
- State the target market and required natural-gas or LPG version.
- Select the needed capacity from the listed 6L-20L series.
- Confirm gas pressure, regulator and local compliance requirements before approval.
- Confirm flue-exhaust and installation conditions with qualified local personnel.
Use this page when fuel configuration is the first decision; capacity, finish and private-label requirements can then be finalized in the quotation.
Gas Water Heater Product Details
Capacity: 6L-20L
Fuel Type: LP Gas & Natural Gas
Water Pressure: 0.02-0.8MPa
Thermal Efficiency: >=85%
Heat Exchanger Material: Copper
Ignition Type: Auto Ignition
Power Source: Battery, Gas
Exhaust Way: Flue Exhaust

Features
1. Flue exhaust instant gas water heater;
2. Low water pressure start-up function, big flow rate;
3. White or any color powder coating, SS, glass panel;
4. Fully water-controlled automatic impulse ignition;
5. Flame-out protection;
6. Anti-dry combustion protection;
7. Over-pressure and water drainage anti-freezing protection (optional);
8. Overheating protection;
9. Advanced combustion system with the Winter/summer switch to save energy (optional);
10. 20 minutes auto-off (optional);
11. Colorful LCD temperature display to know water temperature and working status (optional).
Product specification

Product loading quantity
Series | Hot Water Supply L/Min △t 25°C | Rated Heat Load | Product Size(mm) | Packing Size(mm) | Loading Quantity 20GP/40HQ(PCS) |
| 1 | 6L | 12KW | 440*300*120 | 520*335*180 | 900/2150 |
| 2 | 7L | 14KW | 500*300*155 | 610*355*190 | 680/1640 |
| 3 | 8L | 16KW | 520*320*155 | 610*370*205 | 610/1460 |
| 4 | 10L | 20KW | 590*340*180 | 670*405*230 | 465/1070 |
| 5 | 12L | 24KW | 620*340*180 | 710*405*230 | 430/1010 |
| 6 | 14L | 28KW | 650*395*188 | 720*460*240 | 350/840 |
| 7 | 16L | 32KW | 650*395*188 | 720*460*240 | 350/840 |
| 8 | 20L | 40KW | 700*440*188 | 800*490*240 | 290/710 |
Customised service
Heat Exchanger

Valve
Zero-water-pressure valve or Normal water-pressure valve.

Knob and Display Options

Gas Water Heater Factory FAQ
Yes. We are a professional gas water heater factory founded in 1997, with experience in OEM and ODM production.
Our MOQ is 50 pieces per model.
Sample preparation usually takes 10 to 20 days, depending on the model and customization requirements.
Yes. OEM orders are welcome. We can support customized branding, packaging, and product specifications.
The standard delivery time is about 30 days after the order is confirmed and the deposit is received.
Our payment term is T/T: 30% deposit in advance and 70% balance before shipment
WhatsApp: +86 158 7604 6823
Natural gas and LPG configuration checklist
“Natural gas” and “LPG” are not interchangeable settings. A buyer should confirm the fuel type, gas pressure, injector or valve configuration, connector standard, and local service requirements before approving a model.
What to compare before placing a sample order
- Destination-country gas type and pressure
- Required litres-per-minute output and temperature rise
- Flue, natural-exhaust, or forced-exhaust installation
- Water pressure, flow sensor, and ignition requirements
- Labels, manuals, carton markings, and spare parts
We can prepare a configuration review for distributors, importers, and private-label buyers. A licensed local installer should approve the final gas and exhaust setup.
Request LPG/NG configuration support: info@kechangwaterheater.com | WhatsApp +86 158 7604 6823
Natural gas tankless water heater with LPG configuration
This 6-12L natural gas tankless water heater can be reviewed with an LPG configuration option for importers serving different fuel markets. Confirm the selected gas type, local pressure, water-flow demand, exhaust method and labeling before placing a production order.
Import specification checklist
- Destination fuel standard and connection requirements
- Capacity, inlet pressure and installation environment
- Branding, packaging and spare-parts plan
Compare related tankless heater models, learn about factory capability, and ask for a market-specific quote.
Starting at US$26. Final pricing depends on the model, specifications, MOQ, and order quantity. Request a quote.





